Self-referenced phase reconstruction proposal of GHz bandwidth non-periodical optical pulses by in-fiber semi-differintegration

CUADRADO LABORDE, CHRISTIAN; ANDRES BOU, MIGUEL; LANCIS, JESÚS

OPTICS COMMUNICATIONS

ELSEVIER SCIENCE BV

Lugar: Amsterdam; Año: 2011 vol. 284 p. 5636 - 5640

0030-4018

We propose two new techniques able to retrieve the phase profile of a given temporal optical pulse based on the use of in-fiber semi-differintegral operators, where by semi-differintegration we mean either a 0.5th order differentiation or integration. In both cases, the signal´s temporal phase can be obtained by simple dividing two temporal intensity profiles, namely the intensities of the input and output pulses of a spectrally shifted semi-differintegral operator. In both cases, we obtained simple analytical expressions for the phase profile. The techniques are self-referenced and well-suited for real-time applications. We numerically prove the viability of these proposals.